(i) The ratio of the forward voltage (Vf) and forward current (If) at any point on the static forward characteristic is defined as static forward resistance of junction diode.

(ii)Its value is of the order of 102 ohm.

(C)Static reverse resistance (Rr):

(i) The ratio of reverse voltage (Vr) and reverse current (Ir) at any point on static reverse characteristic is defined as the static reverse resistance of junction diode.

(D) Dynamic forward resistance (Vr):

(i)The ratio of small change in forward voltage to the corresponding small change in forwards current on static forward characteristic is defined as the dynamic forward resistance of junction diode (rf)

(ii)

(iii)

(E)Dynamic reverse resistance (rr):

(i) The ratio of the small change in reverse voltage to the corresponding small change in reverse current on the static reverse characteristics is defined as the dynamic reverse resistance of junction diode.